Home / 13,884.23-20,822.63-5,118

Finding the Fourth Proportional to 13,884.23, 20,822.63 and 5,118

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Solution

The fourth proportional to 13,884.23, 20,822.63 and 5,118 is: 7,675.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.23 : 20,822.63 = 5,118 : x
  2. Step 2: Convert to fraction form
    13,884.23/20,822.63 = 5,118/x
  3. Step 3: Cross multiply
    13,884.23x = 20,822.63 × 5,118
  4. Step 4: Simplify right side
    13,884.23x = 106,570,194.75
  5. Step 5: Solve for x
    x = 106,570,194.75/13,884.23
  6. Step 6: Final answer
    x = 7,675.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.